May 2024
Intermediate to advanced
309 pages
13h 33m
English
Content preview from Data Communications and Computer Networks by Pearson
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Network Security
1. What are the desirable requirements for a secure communication?
Ans: Nowadays, the computer network is used by most people for performing their tasks such as
shopping, bill payment and banking. Thus, it becomes important to secure the network, so that unau-
thorized people could not access the information. For secured communication, there are some basic
requirements that must be met. These are as follows:
Confidentiality It refers to maintaining secrecy of the message being transmitted over the network.
Only the sender and the intended receiver should be able to understand and read the message and no
eavesdropp ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.